4 items are filed under this topic.
 |
|
|
|
|
|
|
|
|
Concentric circles |
2009-10-14 |
|
From maddy:
Find the exact area of the region bounded by two concentric circles with radii 10 inches and 6 inches.
Answered by Penny Nom. |
|
|
|
|
|
|
Two concentric circles form an annulus |
2007-05-02 |
|
From A student:
In the diagram below, two concentric circles form an annulus. The
vertical line is tangent to the inner circle, and forms the diameter of
a third circle.
Explain why the areas of the annulus and third circle are the same.
Answered by Penny Nom. |
|
|
|
|
|
|
Two concentric circles |
2007-04-19 |
|
From James:
Two concentric circles have a chord running through the outer one. The chord is the tangent of the inner circle and is 14 cm.The outer circle is shaded and the inner circle is not. Find the exact area of the shaded region without using a calculator.
Answered by Stephen La Rocque. |
|
|
|
|
|
|
Two concentric circles |
2007-02-11 |
|
From maria:
i have a problem with this quadratic word problem which i am trying to solve it but couldn,t get it please help me to solve this question Two concentric circles are drawn, the radius of one being 2cm greater than that of the other. The area of the ring enclosed between the two circles is one quarter of the area of the smaller circle.Calculate the radii of the circles,correct to three significant figures. (Don,t substitute for pie)
Answered by Stephen La Rocque. |
|
|
